freeman 0.1.0

A terminal-based API testing tool - like Postman, but for your terminal
Documentation 
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//! Command handlers - business logic for processing UI events
//!
//! This module contains all the command handlers for [`AppState`].
//! Methods are organized by feature area:
//! - **Navigation**: Panel switching and focus
//! - **Input**: Text editing and cursor movement
//! - **HTTP**: Method cycling, headers, auth
//! - **Request**: Preparation, validation, and response handling
//! - **Workspace**: Project discovery and endpoint loading
//! - **WebSocket**: Connection and message handling


use crate::app::AppState;
use crate::messages::ui_events::{AppTab, InputMode, Panel};

impl AppState {
    // ========================
    // Navigation
    // ========================

    /// Move focus to the next panel in the tab order.
    /// Panels cycle: Url → Body → Headers → Auth → Workspace → Url
    pub fn next_panel(&mut self) {
        self.active_panel = self.active_panel.next();
    }

    /// Move focus to the previous panel in the tab order.
    pub fn prev_panel(&mut self) {
        self.active_panel = self.active_panel.prev();
    }

    /// Focus the workspace panel directly.
    pub fn focus_workspace(&mut self) {
        self.active_panel = Panel::Workspace;
    }

    // ========================
    // Input editing
    // ========================

    pub fn start_editing(&mut self) {
        self.input_mode = InputMode::Editing;
        self.cursor_position = self.current_input().len();
    }

    pub fn stop_editing(&mut self) {
        self.input_mode = InputMode::Normal;
    }

    pub fn move_cursor_left(&mut self) {
        let input = self.current_input();
        if self.cursor_position > 0 {
            let new_pos = input[..self.cursor_position]
                .char_indices()
                .last()
                .map(|(i, _)| i)
                .unwrap_or(0);
            self.cursor_position = new_pos;
        }
    }

    pub fn move_cursor_right(&mut self) {
        let input = self.current_input();
        if self.cursor_position < input.len() {
            let new_pos = input[self.cursor_position..]
                .char_indices()
                .nth(1)
                .map(|(i, _)| self.cursor_position + i)
                .unwrap_or(input.len());
            self.cursor_position = new_pos;
        }
    }

    pub fn enter_char(&mut self, c: char) {
        let cursor_pos = self.cursor_position;
        let input = self.current_input_mut();
        if cursor_pos <= input.len() {
            input.insert(cursor_pos, c);
            self.cursor_position = cursor_pos + c.len_utf8();
        }
    }

    pub fn delete_char(&mut self) {
        if self.cursor_position > 0 {
            let cursor_pos = self.cursor_position;
            let input = self.current_input_mut();
            let prev_pos = input[..cursor_pos]
                .char_indices()
                .last()
                .map(|(i, _)| i)
                .unwrap_or(0);
            input.remove(prev_pos);
            self.cursor_position = prev_pos;
        }
    }

    // ========================

    pub fn toggle_help(&mut self) {
        self.show_help = !self.show_help;
    }

    pub fn close_help(&mut self) {
        self.show_help = false;
    }

    pub fn switch_tab(&mut self, tab: AppTab) {
        self.active_tab = tab;
        self.input_mode = InputMode::Normal;
    }

}